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Table 1 Classification of regional lymph nodes of the pancreas

From: Proposing the lymphatic target volume for elective radiation therapy for pancreatic cancer: a pooled analysis of clinical evidence

No. of Study Studies Year Location of Tumors No. of Patients LN Positivity
1 Brunner TB [16] 1978-1997 Head 178 NA
2 Matsuno S [1] 1981-2002 Head 4913 NA
3 Kayahara M [17] 1974-1996 General* 99 78%
4 Sierzega M [18] 1980-2002 Head 96 66.70%
5# Nagakawa T [19] 1973-1989 Head 42 78.60%
6 Nagakawa T [20] 1973-1989 Head 42 78.60%
7 Capussotti L [21] 1988-1998 Head 100 59%
8 Cubilla AL [22] 1974-1976 General* 22 86.40%
9 Nakao A [23] 1981-1995 Body/tail 30 46.70%
10 Nagai H [24] 1980-1983 General* 8 75%
11 Kayahara M [25] 1980-1994 Body/tail 20 80%
12 Kayahara M [26] N/A Head 44 70.50%
13 Yoshida T [27] 1995-1999 Head 34 NA
14 Sakai M [28] 1981-2002 Head 178 66%
15 Gerdes B [29] 1995-2002 Head 50 64%
16 Ishikawa O [30] 1981-1994 Head 81 73%
17 Kayahara M [31] 1973-1991 Head 49 76%
18 Kocher HM [32] N/A General* 10 80%
  1. #The patients of Study No.5 are same as those of Study No.6.
  2. N/A = not applicable; * "General" indicates the location of tumor in that study include either head or body/tail.